# Update Types

> Safely update the core data schema and types. Use when changing data models, adding fields, or modifying the report structure.

- Skill: `majiayu000/update-types` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/update-types`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/update-types/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Docs & Writing
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/update-types

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When updating types in the Weekly Report Builder, follow this sequence:

1. **Modify the type definition:**
   - Edit `client/src/types.ts` (or `src/types.ts`)
   - Add/modify the field with proper typing
   - Add JSDoc comments for complex fields

2. **Update initialization:**
   - Check `src/App.tsx` or `client/src/App.tsx` for `emptyReport` initialization
   - Ensure new fields have sensible default values
   - Example: `newField: ''` or `newField: []`

3. **Check update handlers:**
   - Review `src/components/ReportEditor.tsx` generic update handlers
   - Ensure they can handle the new field type

4. **Update any serialization:**
   - Check `data/` directory for JSON schemas
   - Update any API endpoints that use the type

5. **Verify:**
   - Run `npm run build` to catch type errors
   - Search for usages of the modified type to ensure compatibility